CALNIC A and CALNIC B will be integrated into the ST-ECF On The Fly Recalibration Pipeline in such a way that an archival researcher or a CALNIC C user will be able to browse through the HST observation log via the usual web interface, and will be able to submit a request for the desired associations.
At that point the ECF archive, in an unattended way driven by the HST database, will retrieve all the raw data belonging to the marked association, along with the required reference files and association table. The automatic system will apply CALNIC A and CALNIC B to the data so retrieved.
The final product, but also all the intermediate ones, will be available to the requester via FTP, LAN, DAT, EXABYTE or CD-ROM as specified at the time of the request.
The researcher can then run CALNIC C on his/her host.
A second possibility is to integrate CALNIC C in the On The Fly recalibration pipeline.
In both cases a problem arises: CALNIC C needs both the direct and the grism images. At the moment the direct and grism exposures are not part of an association. In other words there is no knowledge in the HST database -nor anywhere else- of which direct image is associated to a given grism image.
A way to circumvent this problem would be to use the same approach which is now in development by the ST-ECF Archive Team to associate WFPC2 exposures, that is: to build an association by using the available information on the pointing -right ascension, declination and roll angle- since the direct and grism images have to be very well aligned onto the sky. This extra step is not in place yet.